Open Plot Association petered out because there is too much thinking involved so here is my attempt at something.

(Might need some fine tuning since I am making it up on the spot. A friend and I used to do this when we were bored.)

There must be an action.

It can be any one action and must directly affect or interact with the previous action.

You cannot add more than one addition person place or thing in your post.ORYou cannot remove any more than one person place or thing in your post.

There can be any number of things going on added by however many people, but every post must repeat all of those things in the previous post to maintain the continuity.

There should be no reason you have to read more than the current post to participate. It might make more sense sometimes if there is a trend, but any action at any point should be acceptable and you must work with it.

For instance.

A ranger is walking down the street.-----Their is an explosion in the street blowing the ranger into the sky.-----A nearby dragon flies by and grabs the thrown ranger.-----A spear is thrown at the dragaon that is carrying the ranger.-----The spear hits the dragon directly in the head going through the ranger.-----The dragon spirals to the ground landing on a small peasants hut.-----The peasant gathers around the hut and calls his neighbors to look.-----One of the neighbors starts pulling teeth out of the dragon's mouth.-----

etc etc. Mundane but you get the point. Improvise on the rules as you go if you need to, it makes more sense when you just do it but this will get it started....I hope.

The dirt-spirit, in his fury at seeing the gems eaten by the servant, starts to spin at such a rate to slowly, with gaining momentum, generate a dirt tornado around the amazed druid.

(try and collect everything that is happening in your sentence so we don't have to read back because, already, I don't even get what is happening But, even if I don't get it, you have to run with it. )

The valiant King of Pop is drawn to a sudden halt; basalt or marble to loac the catapult...black or white. Emitting a high pitched OWWWWWW! He smashes the catapult with a mace whilst dancing up a storm.